UCC25701

ACTIVE

15V VCC, 1A Driver single ended 700KHz voltage mode PWM controller with 13V/9V UVLO, -40C to 85C

Product details

Vin (max) (V) 15 Operating temperature range (°C) -40 to 85 Control mode Feedforward, Voltage Topology Boost, Flyback, Forward Rating Catalog Features Adjustable switching frequency, Current limiting, Multi-topology, Programmable max duty cycle, Soft start, Synchronization pin Duty cycle (max) (%) 99
Vin (max) (V) 15 Operating temperature range (°C) -40 to 85 Control mode Feedforward, Voltage Topology Boost, Flyback, Forward Rating Catalog Features Adjustable switching frequency, Current limiting, Multi-topology, Programmable max duty cycle, Soft start, Synchronization pin Duty cycle (max) (%) 99
PDIP (N) 14 181.42 mm² 19.3 x 9.4 SOIC (D) 14 51.9 mm² 8.65 x 6 TSSOP (PW) 14 32 mm² 5 x 6.4
  • 700kHz Operation
  • Integrated Oscillator/Voltage Feed Forward Compensation
  • Accurate Duty Cycle Limit
  • Accurate Volt-second Clamp
  • Optocoupler Interface
  • Fault Counting Shutdown
  • Fault Latch off or Automatic Shutdown
  • Soft Stop Optimized for Synchronous Rectification
  • 1A Peak Gate Drive Output
  • 130µA Start-up Current
  • 750µA Operating Current
  • 700kHz Operation
  • Integrated Oscillator/Voltage Feed Forward Compensation
  • Accurate Duty Cycle Limit
  • Accurate Volt-second Clamp
  • Optocoupler Interface
  • Fault Counting Shutdown
  • Fault Latch off or Automatic Shutdown
  • Soft Stop Optimized for Synchronous Rectification
  • 1A Peak Gate Drive Output
  • 130µA Start-up Current
  • 750µA Operating Current

The UCC35701/UCC35702 family of pulse width modulators is intended for isolated switching power supplies using primary side control. They can be used for both off-line applications and DC/DC converter designs such as in a distributed power system architecture or as a telecom power source.

The devices feature low startup current, allowing for efficient off-line starting, yet have sufficient output drive to switch power MOSFETs in excess of 500kHz.

Voltage feed forward compensation is operational over a 5:1 input range and provides fast and accurate response to input voltage changes over a 4:1 range. An accurate volt-second clamp and maximum duty cycle limit are also featured.

Fault protection is provided by pulse by pulse current limiting as well as the ability to latch off after a programmable number of repetitive faults has occurred.

Two UVLO options are offered. UCC35701 family has turn-on and turn-off thresholds of 13V/9V and UCC35702 family has thresholds of 9.6V/8.8V.

The UCC35701/2 and the UCC25701/2 are offered in the 14 pin SOIC (D), 14 pin PDIP (N) or in 14 pin TSSOP (PW) packages. The UCC15701/2 is offered in the 14 pin CDIP (J) package.

The UCC35701/UCC35702 family of pulse width modulators is intended for isolated switching power supplies using primary side control. They can be used for both off-line applications and DC/DC converter designs such as in a distributed power system architecture or as a telecom power source.

The devices feature low startup current, allowing for efficient off-line starting, yet have sufficient output drive to switch power MOSFETs in excess of 500kHz.

Voltage feed forward compensation is operational over a 5:1 input range and provides fast and accurate response to input voltage changes over a 4:1 range. An accurate volt-second clamp and maximum duty cycle limit are also featured.

Fault protection is provided by pulse by pulse current limiting as well as the ability to latch off after a programmable number of repetitive faults has occurred.

Two UVLO options are offered. UCC35701 family has turn-on and turn-off thresholds of 13V/9V and UCC35702 family has thresholds of 9.6V/8.8V.

The UCC35701/2 and the UCC25701/2 are offered in the 14 pin SOIC (D), 14 pin PDIP (N) or in 14 pin TSSOP (PW) packages. The UCC15701/2 is offered in the 14 pin CDIP (J) package.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Similar functionality to the compared device
UCC28C53 ACTIVE Industrial, 30-V, low-power current-mode PWM controller, 8.4-V/7.6-V UVLO, 100% duty cycle Supports Buck, Boost, Flyback topologies

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 4
Type Title Date
* Data sheet Advanced Voltage Mode Pulse Width Modulator datasheet (Rev. C) 17 Jun 2005
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note DN-62 Switching Power Supply Topology Voltage Mode vs. Current Mode 05 Sep 1999
Application note U-150 Applying the UCC3570 Voltage-Mode PWM Controller to Both Off-Line 05 Sep 1999

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Package Pins CAD symbols, footprints & 3D models
PDIP (N) 14 Ultra Librarian
SOIC (D) 14 Ultra Librarian
TSSOP (PW) 14 Ultra Librarian

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos